5 Written Questions

1. 1. inspiratory depth
   -greater stimulation=greater # of motor units=greater force
   2. respiratory rate
2. indicated by reduced arterial PO2, abnormal ventilation-perfusion coupling, pulmonary diseases that impair ventilation, and breathing poorly oxygenated air
3. total pressure exerted by a mixture of gases is the sum of the pressures exerted independently by each gas in the mixture
4. pressure exerted by the air surrounding the body
   -Patm 760 mm Hg at sea level=1atm
5. can suppress the VRG

5 Matching Questions

1. bronchopulmonary segments
2. Po2 of blood entering the lungs in pulmonary arteries
3. anemic hypoxia
4. lungs
5. Respiratory System

1. a action of supplying the body with oxygen and disposing of carbon dioxide is the major function
2. b composed of air space and elastic tissue
3. c 40 mm Hg
4. d each lung lobe contains a number of pyramid shaped segments, separated by septa, and each has its own artery and vein
5. e reflects poor O2 delivery resulting from too few RBCs or from RBCs that contain abnormal or too little Hb

5 Multiple Choice Questions

1. provide systemic blood that nourishes the lung tissue
   1. bronchial circulation
   2. External Respiration
   3. pulmonary circulation
   4. bronchial arteries
2. crawl freely along the internal alveolar surfaces
   1. alveolar macrophages
   2. alveolar pores
   3. cortical controls
   4. alveolar sacs
3. the blood flow in pulmonary capillaries
   1. perfusion
   2. ventilation
   3. pneumonia
   4. eupnea
4. 0.5-1 mm thick in healthy lungs, efficiency of gas exchange is dependent on the thinnest of the membrane and shortness of diffusion
   1. airway resistance
   2. Dorsal Respiratory group
   3. Respiratory membrane
   4. pulmonary veins
5. located in the ventolateral medulla, regulate arterial PCO2(40+/- mm Hg)
   1. external intercostals
   2. central chemoreceptors
   3. cortical controls
   4. partial pressure

5 True/False Questions

1. respiratory membrane → transport of oxygen from the lungs to the tissue cells and of carbon dioxide from the tissue cells

   True        False

2. active TB → create tracheal walls

   True        False

3. Path of Air Flow → connect adjacent alveoli, allows equalized air pressure

   True        False

4. respiratory tree → action of supplying the body with oxygen and disposing of carbon dioxide is the major function

   True        False

5. difference of bronchioles and bronchi → feed into alveolar ducts and sac

   True        False